Brother MFC4820C Service Manual page 227

Selector
No.
1
Min. detection period required
for interpreting incoming
calling signal (CI) as OFF
2
3
Max. detection period for
incoming calling signal (CI)
being OFF
4
5
Min. detection period required
for acknowledging incoming
calling signal (CI) as ON
6
7
Not used.
8
Selectors 1 through 4:
If the equipment detects the OFF state of a CI signal for the period greater than the value set by
selectors 1 and 2 and less than the value set by selectors 3 and 4, it interprets the CI signal as OFF.
Selectors 5 and 6: Min. detection period required for acknowledging incoming calling signal (CI) as
ON
These selectors set the period required to make the equipment acknowledge itself to be called.
That is, if the equipment continuously detects a CI signal with the frequency set by selectors 1
through 4 of WSW14 during the period set by these selectors 5 and 6, then it acknowledges the
call.
WSW12
(Signal detection condition setting)
Function
Min. detection period required for interpreting incoming calling signal (CI) as
OFF
Max. detection period for incoming calling signal (CI) being OFF
App. 4-15
Setting and Specifications
No. 1 2
0 0 : 1500 ms
0 1 : 500 ms (450 ms in Japan)
1 0 : 700 ms
1 1 : 900 ms
No. 3 4
0 0 : 6 sec.
0 1 : 7 sec.
1 0 : 9 sec.
1 1 : 11 sec.
No. 5 6
0 0 : 800 ms (1000 ms in Japan/China)
0 1 : 200 ms (800 ms in Japan)
1 0 : 250 ms (600 ms in Japan)
1 1 : 150 ms (400 ms in Japan)